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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* @fileoverview
* 'zoom-levels' is the polymer element for showing the sites that are zoomed in
* or out.
*/
Polymer({
is: 'zoom-levels',
behaviors: [
ListPropertyUpdateBehavior,
SiteSettingsBehavior,
WebUIListenerBehavior,
],
properties: {
/**
* Array of sites that are zoomed in or out.
* @type {!Array<ZoomLevelEntry>}
*/
sites_: {
type: Array,
value: () => [],
},
/** @private */
showNoSites_: {
type: Boolean,
value: false,
},
},
/** @override */
ready: function() {
this.addWebUIListener(
'onZoomLevelsChanged', this.onZoomLevelsChanged_.bind(this));
this.browserProxy.fetchZoomLevels();
},
/**
* A handler for when zoom levels change.
* @param {!Array<ZoomLevelEntry>} sites The up to date list of sites and
* their zoom levels.
*/
onZoomLevelsChanged_: function(sites) {
this.updateList('sites_', item => item.origin, sites);
this.showNoSites_ = this.sites_.length == 0;
},
/**
* A handler for when a zoom level for a site is deleted.
* @param {!{model: !{index: number}}} event
* @private
*/
removeZoomLevel_: function(event) {
const site = this.sites_[event.model.index];
this.browserProxy.removeZoomLevel(site.origin);
},
});
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